12.9 Amps to Watts

12.9 amps is 1,548 watts at 120V (DC). The wattage depends on your circuit voltage.

12.9 Amps to Watts at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
154.8W 131.58W 227.9W
24V
DC, industrial control
309.6W 263.16W 455.81W
100V
Japan residential
1,290W 1,096.5W 1,899.19W
120V
US residential
1,548W 1,315.8W 2,279.03W
208V
US commercial three-phase
2,683.2W 2,280.72W 3,950.32W
220V
Legacy international / parts of Asia
2,838W 2,412.3W 4,178.23W
230V
UK / EU residential
2,967W 2,521.95W 4,368.15W
240V
US residential (dryer, range, HVAC)
3,096W 2,631.6W 4,558.06W
277V
US commercial lighting
3,573.3W 3,037.31W 5,260.77W
400V
UK / EU commercial three-phase
5,160W 4,386W 7,596.77W
460V
US industrial motor (NEC 430.250 column)
5,934W 5,043.9W 8,736.29W
480V
US industrial three-phase
6,192W 5,263.2W 9,116.13W
575V
Canadian industrial three-phase
7,417.5W 6,304.88W 10,920.36W

Other Amperages

This calculator provides estimates for reference purposes only. Always consult a licensed electrician and verify compliance with the National Electrical Code (NEC) and local electrical codes before performing any electrical work.